View Incident:
http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1&view_type=Bug&wi=814810
Submitter : nathans Submitter Domain : engr
Assigned Engineer : nathans Assigned Domain : engr
Assigned Group : xfs-linux Category : software
Customer Reported : F Priority : 2
Project : xfs-linux Status : open
Description :
QA test 018 can reliably cause xfs_logprint to dump core when the
usrquota mount option has been specified via MOUNT_OPTIONS, and when
using an xfs_logprint binary linked with libefence. Using a binary
without libefence - no core dump, so xfs_logprint likely has some
questionable memory access pattern(s) in this case.
[root@troppo xfstests]# gdb /usr/sbin/xfs_logprint 018.core
GNU gdb 19991004
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...
Core was generated by `xfs_logprint /dev/hdb7'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
#0 0x804b662 in xlog_print_trans_buffer (ptr=0xbffff938, len=24,
i=0xbffff924, num_ops=253) at log_misc.c:373
373 printf("0x%x ",
(gdb) l
368 }
369 for (bucket = 0; bucket < buckets;) {
370 printf("bucket[%d - %d]: ", bucket,
bucket+3);
371 for (col = 0; col < 4; col++, bucket++)
{
372 if (bucket < buckets) {
373 printf("0x%x ",
374 INT_GET(agi->agi_unlinked[bucket],
ARCH_CONVERT));
375 }
376 }
377 printf("\n");
(gdb) p agi
$1 = (xfs_agi_t *) 0x40116fa8
(gdb) p agi->agi_unlinked
Cannot access memory at address 0x40116fd0
(gdb) p bucket
$2 = 12
(gdb) p buckets
$3 = 64
(gdb) p col
$4 = 0
(gdb)
|